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English definition of “coo”

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coo

verb [I]
 
 
/kuː/ ( present participle cooing, past tense and past participle cooed)
MAKE SOUND to make a soft, low sound, like a pigeon (= large, grey bird) Animal (non-human) sounds
SPEAK to speak in a soft, low voiceWays of talking
(Definition of coo from the Cambridge Learners Dictionary © Cambridge University Press)
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